Page 31

WARNING

Do not mix gasoline, alcohol, or gasohol with diesel fuel. This mixture can cause an explosion.

CAUTION

Due to the precise tolerances of diesel injection systems, it is extremely important that the fuel be kept clean and free of dirt or water. Dirt or water in the system can cause severe damage to both the fuel pump and the fuel injectors.

Cummins Inc. recommends the use of ASTM number 2D fuel. The use of number 2 diesel fuel will result in optimum en- gine performance.

At operating temperatures below 0°C [32°F], acceptable performance can be obtained by using blends of number 2D and number 1D.

NOTE: Lighter fuels can reduce fuel economy.

NOTE: Engines equipped with diesel particulate filters require the use of diesel fuel with 30 ppm sulfur maximum. There are no acceptable substitutes.

The viscosity of the fuel must be kept above 1.3 cSt at 40°C [104°F] to provide adequate pumping and lubricating char- acteristics to fuel system components.

The following chart lists acceptable substitute fuels for this engine.

Acceptable Substitute Fuels

Number

Number

Number

 

 

 

 

 

 

 

1D

 

 

 

 

 

 

 

2D

1K Kero-

Jet-A

Jet-A1

JP-5

JP-8

Jet-B

JP-4

CITE

Diesel(1) (2)

Diesel(3)

sene

 

 

 

 

 

 

 

(3)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

A

OK

Not OK

A

A

A

A

Not OK

Not OK

Not OK

 

 

 

 

 

 

 

 

 

 

An "A" means OK only if fuel lubricity is adequate. This means the BOCLE number is 3100 or greater as measured by ASTM specification D6078, Scuffing Load Ball On Cylinder Evaluator (SLBOCLE). Lubricity can also be measured by ASTM, specification D6079, ISO 12156, High Frequency Reciporating Rig (HFRR) in which the fuel must have a wear scar di- ameter of 0.45 mm [0.02 in] or less.

Any adjustment to compensate for reduced performance with a fuel system using alternate fuel is not warrantable.

Winter blend fuels, such as found at commercial fuel-dispensing outlets, are combinations of number 1D and 2D diesel fuels and are acceptable.

CAUTION

A sulfated ash limit of 1.85 percent has been placed on all engine lubricating oils recommended for use in Cummins engines. Higher ash oils can cause valve and/or piston damage and lead to excessive oil consumption.

CAUTION

The use of a synthetic-base oil does not justify extended oil change intervals. Extended oil change intervals can decrease engine life due to factors such as corrosion, deposits, and wear.

AR-EXP-CUMMINS-07-00

OWNERS MANUAL

Page 31
Image 31
Armstrong World Industries ACUM140, ACUM84, ACUM185, ACUM65, ACUM110, ACUM210 owner manual Not OK

ACUM210, ACUM110, ACUM65, ACUM185, ACUM140 specifications

Armstrong World Industries has established itself as a leader in the design and manufacture of innovative ceiling and wall solutions. Among their notable acoustic ceiling offerings are the ACUM84, ACUM210, ACUM65, ACUM140, and ACUM185 tiles. Each of these products is engineered with distinct features and technologies aimed at enhancing acoustic performance, durability, and aesthetics in various commercial spaces.

The ACUM84 is designed for spaces that prioritize sound absorption and overall acoustic quality. It utilizes advanced sound-dampening technology, making it suitable for environments such as offices, schools, and healthcare facilities. This tile achieves a high Noise Reduction Coefficient (NRC), effectively minimizing sound reverberation, which is essential for maintaining concentration in busy settings.

Similarly, the ACUM210 offers enhanced acoustic properties but with a focus on durability. This tile is constructed with a robust material that is resistant to impact and moisture, making it an excellent choice for high-traffic areas. The fabric-like texture not only adds aesthetic value but also improves its sound-absorbing capabilities, contributing to a quieter environment.

For those seeking a versatile solution, the ACUM65 is an ideal option. This tile is lightweight yet durable, making installation straightforward. Its ecological design ensures minimal environmental impact while providing superior acoustic performance. The ACUM65 is particularly well-suited for retail spaces, where customer experience can be significantly enhanced by better sound control.

ACUM140 is engineered for flexibility and design versatility. With a range of finishes and colors, it allows architects and designers to incorporate acoustic solutions that harmonize with the overall aesthetic of the space. Its high NRC rating ensures a calm auditory environment, making it an excellent fit for restaurants and auditoriums.

Lastly, the ACUM185 combines aesthetics with functionality, offering a sleek design while maintaining outstanding sound absorption capabilities. It meets the demands of contemporary styling without compromising performance. This tile is particularly favored in corporate environments where aesthetics play a crucial role in branding and employee satisfaction.

In conclusion, Armstrong's ACUM product line, including ACUM84, ACUM210, ACUM65, ACUM140, and ACUM185, showcases technologies and characteristics that cater to a variety of applications. With a strong focus on acoustic management, durability, and design versatility, Armstrong continues to provide innovative solutions tailored to the needs of modern commercial spaces.